Masking delimited columns shellscript
问题描述：
我想掩饰此分隔文件中的第6列。目前我的尝试掩盖了整个文件。我想知道我可能做错了什么。Masking delimited columns shellscript
电流：
awk 'BEGIN{FS=OFS="^^"} {gsub(/./, "X", $1)} 6' $1
输入：
00000000001^^00023^^111112233^^C^^ ^^Iwanttomaskthis ^^ ^^ ^^U^^W^^ ^^ ^^222^^6^^77
00000000001^^00024^^111112233^^B^^ ^^Iwanttomaskthis ^^ ^^ ^^X^^W^^ ^^ ^^333^^9^^88
预计：
00000000001^^00023^^111112233^^C^^ ^^XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX^^ ^^ ^^U^^W^^ ^^ ^^222^^6^^77
00000000001^^00024^^111112233^^B^^ ^^XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX^^ ^^ ^^U^^W^^ ^^ ^^222^^6^^77
答
您可以使用此awk：
awk 'BEGIN{FS="\\^\\^"; OFS="^^"} {gsub(/./, "X", $6)} 1' file
00000000001^^00023^^111112233^^C^^ ^^XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX^^ ^^ ^^U^^W^^ ^^ ^^222^^6^^77
00000000001^^00024^^111112233^^B^^ ^^XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX^^ ^^ ^^X^^W^^ ^^ ^^333^^9^^88
这里我们需要转义^，因为^是一个特殊的正则表达式元字符。
答
您能不能请尝试一种方法，让我知道这是否对您有帮助。
awk '{match($0,/\^\^ +\^\^ /);while((RLENGTH)>1){val=val?val "X":"X";RLENGTH--};sub(/\^\^ +\^\^ /,val,$0);print;val=""}' Input_file
说明：
awk '
{
match($0,/\^\^ +\^\^ /); ##Using match functionality of awk to match regex which will look from ^^ space and ^^ space.
while((RLENGTH)>1){ ##Now starting a while loop which will run till the value of RLENGTH is NOT NULL, not here RSTART and RLENGTH are variables which will be set once a match is found by provided regex in match function of awk.
val=val?val "X":"X"; ##creating a variable here and concatenating its value with stating X only each time it comes in loop.
RLENGTH-- ##Decrement the value of RLENGTH each time it comes in while loop.
};
sub(/\^\^ +\^\^ /,"^^"val"^^ ",$0)##Substitute regex ^^ space(all spaces till) ^^ space with value of val
print; ##printing the current line. It could edited/non-edited depending upon regex is found by match or not.
val="" ##Nullifying the value of variable val here.
}
' file98997 ##Mentioning the Input_file here.
答
变化甚至最后几场。
awk '{sub(/Iwanttomaskthis /,"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX")sub(/X..W/,"U^^W")sub(/..333..9..88/,"^^222^^6^^77")}1' file
00000000001^^00023^^111112233^^C^^ ^^XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX^^ ^^ ^^U^^W^^ ^^ ^^222^^6^^77
00000000001^^00024^^111112233^^B^^ ^^XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX^^ ^^ ^^U^^W^^ ^^ ^^222^^6^^77
谢谢我也这么想，但语法错了。谢谢一堆！ – Defcon